Changed QML type locking

Replace the use of QReadWriteLock with a plain QMutex. At this point
QReadWriteLock adds a lot of overhead due to its internal QHash and otherwise
offers little over a recursive mutex, especially given that there is most
of the time only one reading thread and one writing thread.

Change-Id: I0a91e4a64cff5d25e4a133ed46b08912e81bb055
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/qml/qml/qqmlmetatype_p.h b/src/qml/qml/qqmlmetatype_p.h
index 63e6e3bec8..e5ac20d314 100644
--- a/src/qml/qml/qqmlmetatype_p.h
+++ b/src/qml/qml/qqmlmetatype_p.h
@@ -62,7 +62,7 @@ class QQmlTypePrivate;
 class QQmlTypeModule;
 class QHashedString;
 class QHashedStringRef;
-class QReadWriteLock;
+class QMutex;
 
 namespace QV4 { struct String; }
 
@@ -121,7 +121,7 @@ public:
     static void setTypeRegistrationNamespace(const QString &);
     static QStringList typeRegistrationFailures();
 
-    static QReadWriteLock *typeRegistrationLock();
+    static QMutex *typeRegistrationLock();
 };
 
 struct QQmlMetaTypeData;